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Four rectangular batteries and a small dual-slot USB charger with LCD screen

Kastar

Kastar FNP120 4-pack battery LTD2 USB charger Pentax Optio 450 550 555 750 750Z MX MX4

SKU CH-225S-RN6EC

Four 2300 mAh lithium-ion batteries and a dual-slot USB charger with LCD status display for Pentax Optio models

  • Total capacity8.51 Wh
  • Pack contents1 Charger + 4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions5 × 3 × 3 in
  • Key featuresLCD USB Dual charger, can charge 2 batteries at the same tim
  • Four high-capacity Li-Ion batteries for extended shooting
  • LCD USB dual charger powers two cells simultaneously
  • Micro-USB and Type-C inputs for flexible charging
  • Intelligent display shows real-time charge status and capacity
  • Compatible with Pentax Optio 450, 550, 555, 750, 750Z, MX, MX4

Replacement power for Pentax Optio cameras

This set includes four lithium-ion batteries and a dual-slot USB charger that works with Pentax Optio 450, 550, 555, 750, 750Z, MX and MX4 models. Each battery delivers 3.7V and 2300mAh for 8.51Wh capacity. The charger accepts Micro-USB or Type-C input at 5V up to 3A and can charge two cells simultaneously at 800mA each.

Upgrade from single proprietary chargers

Older Pentax cameras often shipped with a single dedicated AC adapter and one battery. This kit replaces that arrangement by letting you charge two cells at once from any 5V USB source such as a power bank or wall adapter. The jump is worthwhile when you shoot all day and need spare power without carrying a brand-specific wall wart.

Check your camera battery code before ordering

These cells replace the Pentax D-LI7 pack; verify that your camera uses that exact code. The charger ships with interchangeable plates, but the included plates are sized for the NP-120 form factor used by the listed models. If your camera requires a different physical battery shape the plates will not fit.

How it compares

Measured against everything we stock in Camera Batteries, Grips & Chargers, at today’s prices. Recalculated every night.

Price $21.99
Pricier than about 65% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameFNP120
Part numberCH-LTD2-4B-FNP120-D
Total capacity8.51 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions5 × 3 × 3 in
In the box
Pack contents1 Charger + 4 Batteries

Other versions of this model

5 more in the same range

Questions about this item

What battery models does the FNP120 pack replace for the Pentax Optio 450?

The four FNP120 cells replace Pentax D-LI7, Ricoh DB-43, Fujifilm NP-120, NP-120B, Toshiba NP-120 PX1657 and Contax/Kyocera BP-1500S batteries.

How do I power the LTD2 charger and what cable is included?

Connect the Micro-USB or Type-C port to any 5 V 2–3 A source; a Micro-USB cable is supplied in the box.

When should I replace the 2300 mAh Li-Ion cells in this kit?

Replace them when they no longer hold a useful charge — typically after 300–500 full cycles or when runtime drops noticeably.

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